<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>资源引用</title>
    <!--引入必须的资源文件-->
    <link rel="stylesheet" href="../css/bootstrap.css">
    <script type="text/javascript" src="../js/jquery-3.3.1.js"></script>
    <script type="text/javascript" src="../js/bootstrap.js"></script>
</head>
<body>
    <h1>你好啊，欢迎学习bootstrap！</h1>
    <button class="btn btn-success">按钮</button>
</body>
</html>